| Villamar | |
| Official Name: | Comune di Villamar |
| Native Name: | Mara Arbarei |
| Pushpin Map: | Italy Sardinia |
| Coordinates: | 39.6167°N 65°W |
| Region: | Sardinia |
| Province: | South Sardinia |
| Mayor: | Pier Sandro Scano |
| Area Total Km2: | 38.6 |
| Population Footnotes: | [1] |
| Population Total: | 2880 |
| Population As Of: | 30 November 2010 |
| Population Demonym: | Villamaresi |
| Postal Code: | 09020 |
| Area Code: | 070 |
Villamar, Mara (Marsh) de Arbarei in the Sardinian language, is a comune (municipality) in the Province of South Sardinia in the Italian region Sardinia, located about 45km (28miles) northwest of Cagliari and about 7km (04miles) northeast of Sanluri.
Villamar borders the following municipalities: Furtei, Guasila, Las Plassas, Lunamatrona, Pauli Arbarei, Sanluri, Segariu, Villanovafranca.